CVE-2026-74299
Low risk· EPSS 5%Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
In the Linux kernel, the RDMA/core subsystem has an error in the flow of moving FRMR handles between queues. When moving to a non-empty inactive queue fails due to page allocation failure, the handle is not handled and mkey leaks. The fix introduces push_queue_to_queue_locked() that performs no allocation and simplifies error handling.
Risk Assessment
Under heavy memory pressure, kernel resource leaks may occur, potentially leading to performance degradation or denial of service.
Recommendation
Install the Linux kernel patch for CVE-2026-74299. Monitor kernel memory usage on systems using RDMA.
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In the Linux kernel XFS filesystem, during AGI repair, the function xrep_iunlink_walk_ondisk_bucket may attempt to use the pointer sc->sa.agi_bp, which can be null if the buffer verifier fails. The fix uses ragi->agi_bp instead, which skips verifier checks, to avoid walking off the end of memory.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix FRMR aging push to queue error flow Aging pools with pinned handles requires moving handles from the active queue to a non-empty inactive queue that might fail on new page allocation, we are currently not handling the fault and leaking any mkey that fails the push. Fix by Introducing push_queue_to_queue_locked() that fills the destination's partial tail page from the source and then splices the remaining source pages onto the destination, performing no allocation. Replace the per-handle move loop in age_pinned_pool() and the open-coded splice in pool_aging_work() with calls to the helper. As the helper cannot fail under memory pressure, removing a class of GFP_ATOMIC allocations under the pool lock and simplifying the error flow.